Synthesis of magnetic core-shell Fe₃O₄@PDA@Cu-MOFs composites for enrichment of microcystin-LR by MALDI-TOF MS analysis.

ABSTRACT: Microcystin-LR (MC-LR) is a toxin released from cyanobacteria in eutrophicated water. MC-LR is the most abundant and the most toxic among microcystins. In this work, core-shell structured copper-based magnetic metal-organic framework (Fe₃O₄@PDA@Cu-MOFs) composites were synthesized via a solvothermal reaction and a sol-gel method. The Fe₃O₄@PDA@Cu-MOFs composites showed ultra-high surface area, strong magnetic response and outstanding hydrophilicity. The Fe₃O₄@PDA@Cu-MOFs composites combined with matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF-MS) were used to analyse the content of MC-LR in real water samples. Under the optimised conditions, our proposed method exhibited good li

SUBMITTER: Li Z 

PROVIDER: S-EPMC9055938 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature